Home / 74,040.28-102,173.22-40,504.12

Finding the Fourth Proportional to 74,040.28, 102,173.22 and 40,504.12

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Solution

The fourth proportional to 74,040.28, 102,173.22 and 40,504.12 is: 55,894.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,040.28 : 102,173.22 = 40,504.12 : x
  2. Step 2: Convert to fraction form
    74,040.28/102,173.22 = 40,504.12/x
  3. Step 3: Cross multiply
    74,040.28x = 102,173.22 × 40,504.12
  4. Step 4: Simplify right side
    74,040.28x = 4,138,436,363.67
  5. Step 5: Solve for x
    x = 4,138,436,363.67/74,040.28
  6. Step 6: Final answer
    x = 55,894.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.